究 (jiū): research
究 (jiū) is a Chinese character meaning “research.” Classified as HSK Level 4 (HSK 3.0 Standard, CLEC 2022), it is composed of 穴 (semantic) and 九 (phonetic). It ranks #429 in character frequency (SUBTLEX-CH corpus).
Etymologically derived, 究 cave. Its radical form 穴 (cave) appears in many related characters such as 穿 (chuān, to wear, 穿透), 空 (kōng, empty, sky), 突 (tū, sudden).
Definitions
- research
Etymology & Origin
Stroke Order
Practice writing 究 with real-time feedback — trace each stroke in the correct order and build muscle memory in the HanziFeed app.
Words & Compounds
HSK Vocabulary with 究
| Word | Pinyin | Meaning | HSK |
|---|---|---|---|
| 研究verb | yán jiū | research | 4 |
| 究竟adverb/noun | jiū jìng | to go to the bottom of a matter | 4 |
| 研究生noun | yán jiū shēng | graduate student | 4 |
| 追究verb | zhuī jiū | to investigate | 6 |
| 讲究verb/adjective | jiǎng jiu | to pay particular attention to | 5 |
Common Compounds
| Word | Pinyin | Meaning |
|---|---|---|
| 终究 | zhōng jiū | in the end |
| 研究所 | yán jiū suǒ | research institute |
| 探究 | tàn jiū | to investigate |
| 研究员 | yán jiū yuán | researcher |
| 深究 | shēn jiū | to perform an in-depth investigation |
| 研究院 | yán jiū yuàn | research institute |
| 研究者 | yán jiū zhě | investigator |
| 学究 | xué jiū | pedant |
| 考究 | kǎo jiū | to investigate |
| 查究 | chá jiū | to follow up a study |
| 日本原子能研究所 | rì běn yuán zǐ néng yán jiū suǒ | Japan Atomic Energy Research Institute |
| 经不起推究 | jīng bù qǐ tuī jiū | does not bear examination |
| 中美文化研究中心 | zhōng měi wén huà yán jiū zhōng xīn | the Hopkins-Nanjing Center, located in Nanjing, est. 1986 (formally, the Johns Hopkins University – Nanjing Universit... |
| 可行性研究 | kě xíng xìng yán jiū | feasibility study |
| 发展研究中心 | fā zhǎn yán jiū zhōng xīn | Development Research Center (PRC State Council institution) |
究 appears in 46 compound words: 7 as the first character, 37 as the last, and 57 in a middle position. Compound statistics computed from SUBTLEX-CH and HSK 3.0 vocabulary data.
Strongest Collocations
Characters that most frequently co-occur with 究 in natural Chinese text, ranked by NPMI (Normalized Pointwise Mutual Information) — a statistical measure of association strength.
Idioms & Chengyu (3)
Example Sentences
这个问题需要深入研究，才能找到根本原因。
Zhè gè wèntí xūyào shēnrù yánjiū, cáinéng zhǎodào gēnběn yuányīn.
This issue needs in-depth research to find the root cause.
...天 老人吃进ICU!“冰箱杀手”李斯特菌究竟为何?
. . . tiān lǎo rén chī jìn I C U ! bīng xiāng shā shǒu lǐ sī tè jūn jiū jìng wéi hé ?
... The old man was taken to the ICU!" Refrigerator killer "What is listeria bacteria?
总理李强:研究推进银发经济和养老服务发展有关工作
zǒng lǐ lǐ qiáng : yán jiū tuī jìn yín fā jīng jì hé yǎng lǎo fú wù fā zhǎn yǒu guān gōng zuò
Premier Li Qiang: Study and promote the development of the silver economy and elderly care services
国家妇女研究所阿尔加维代表团的解散被认为是不负责任的...
guó jiā fù nǚ yán jiū suǒ ā ěr jiā wéi dài biǎo tuán de jiě sàn bèi rèn wéi shì bù fù zé rèn de . . .
The dissolution of the Algarve delegation of the National Institute for Women was considered irresponsible...
研究表明:监管缺失的商业航天活动正成为大气污...
yán jiū biǎo míng : jiān guǎn quē shī de shāng yè háng tiān huó dòng zhèng chéng wéi dà qì wū . . .
Research shows that commercial space activities without regulation are becoming air pollution...
马年话马丨龙马精神的“龙马”究竟是什么?
mǎ nián huà mǎ 丨 lóng mǎ jīng shén de lóng mǎ jiū jìng shì shén má ?
The year of the horse talk about the horse丨the dragon horse spirit of the "dragon horse" what exactly is it?
苏联学家研究什么呢？
Sūlián xué jiā yánjiū shénme ne?
What does a Sovietologist study?
汤姆究竟在做什么？
Tāngmǔ jiūjìng zài zuò shénme?
What exactly does Tom do?
他不是罗马大学的研究生吗?
Tā bù shì Luómǎ dàxué de yánjiūshēng ma?
Isn't he a graduate student at the University of Rome?
他们从事癌症研究工作。
Tāmen cóngshì áizhèng yánjiū gōngzuò.
They are engaged in cancer research.
Character Family
穴 Radical Family — Characters sharing the cave radical
Frequently Asked Questions
What does 究 (jiū) mean in Chinese?
What's the difference between 究 and 轨?
How many strokes does 究 have?
What is the radical of 究?
What are the components of 究?
What are common words containing 究?
What characters sound the same as 究 (jiū)?
Is 究 the same in simplified and traditional Chinese?
Practice writing 究 with real-time feedback
Trace stroke sequences, hear native pronunciation, and build lasting retention with spaced repetition in the HanziFeed app.